EP0425409A2 - Méthode et système pour la génération de plans de procédé de fabrication - Google Patents

Méthode et système pour la génération de plans de procédé de fabrication Download PDF

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Publication number
EP0425409A2
EP0425409A2 EP19900480125 EP90480125A EP0425409A2 EP 0425409 A2 EP0425409 A2 EP 0425409A2 EP 19900480125 EP19900480125 EP 19900480125 EP 90480125 A EP90480125 A EP 90480125A EP 0425409 A2 EP0425409 A2 EP 0425409A2
Authority
EP
European Patent Office
Prior art keywords
selected product
manufacturing
generating
manufacturing process
textual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900480125
Other languages
German (de)
English (en)
Other versions
EP0425409B1 (fr
EP0425409A3 (en
Inventor
Kate M. Ferriter
Stephen P. Krosner
John F. Laszcz
David H. Withers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0425409A2 publication Critical patent/EP0425409A2/fr
Publication of EP0425409A3 publication Critical patent/EP0425409A3/en
Application granted granted Critical
Publication of EP0425409B1 publication Critical patent/EP0425409B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating 3D models or images for computer graphics
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/24—Indexing scheme for image data processing or generation, in general involving graphical user interfaces [GUIs]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention relates in general to improvements in manufacturing technology and in particular to methods and systems for efficiently generating manufacturing process plans intended for use by manufacturing techni­cians. Still more particularly, the present invention relates to improved methods for generating consistent computer based manufacturing process plans which include corresponding annotated visual images which may be easily followed by a manufacturing technician.
  • Paperless Factory As a result of the aforementioned problem, it has been a recent goal in manufacturing circles to implement the so-called "Paperless Factory.”
  • the foremost objective of a Paperless Factory system is to provide high quality information on the manufacturing plant floor. High quali­ty in this sense is information which is current, under­standable, complete and consistent.
  • Product data currency is a key issue in those areas where manufacturing is presented with frequent Engineering Change (EC) activities from Product Design and Engineering.
  • EC Engineering Change
  • Paperless Factory system One key issue in the implementation of a Paperless Factory system is an analysis of the intended audience for the information which is distributed to the manufacturing shop floor. The reading competency of operators on the shop floor is an important factor in the design and implementa­tion of a Paperless Factory system.
  • Paperless Factory implementations make infor­mation quality and clarity more important than in tradi­tional paper-driven implementations.
  • Poor quality infor­mation available on line through a computer terminal may be far more damaging than poor quality information in a hard copy or paper format within the manufacturing plant setting.
  • Operators will tend to expect that the informa­tion viewed on a computer terminal is the best and clear­est available, whereas hard copy format is known to be often incomplete or unclear.
  • incomplete or unclear hard copy information operators in a traditional manufacturing plant often rely on informal communications with technicians, engineers, and other operators to deter­mine work instructions in addition to the paper sources of information formally provided by the manufacturing engi­neer.
  • a goal in the modern Paperless Factory system is to sys­tematize much of the patchwork of formal and informal communication which exists in today's manufacturing envi­ronment to improve product quality and productivity. Therefore, implementation of the Paperless Factory is more challenging than simply putting the same information which is available on paper on a computer terminal on the plant floor. For example, an ideal Paperless Factory implemen­tation will eliminate or minimize grammar or syntax incon­sistencies which are always present in process plans generated by a Manufacturing Engineer.
  • a well implemented Paperless Factory will eliminate or reduce the process specifications and documentation pre­sented in paper format to the shop floor and replace those specifications with on line operator guidance which meets the shop floor requirement of high quality, current infor­mation.
  • Another advantage of the Paperless Factory imple­mentation is the elimination of the sheer volume of hard copy information required for the manufacturing process. It is not uncommon in certain manufacturing processes to require several hundred thousand pieces of paper for building a particular product, such as a jet aircraft. Thus, the keeping of thousands of process instructions accurate and up-to-date can result in a major bookkeeping problem. A design change may require a change to many thousands of part numbers and affect many different opera­tions. Experience has shown that many quality problems on the shop floor can be traced to poor process documentation or out-of-date information.
  • a method and system are disclosed for the efficient genera­tion of manufacturing process plans which utilizes a visual image of at least a portion of a selected product which has been captured or generated and which is dis­played on a video display of a computer system.
  • a library of iconic representations of manufacturing process steps is also displayed, each iconic representation having a stored textual instruction associated therewith.
  • a graphical pointing device such as a mouse
  • the operator may select a location within the visual image and thereafter select the iconic representation of the manufacturing step desired.
  • the operator may selectively alter the textual instruction utilizing a known text editor.
  • the textual instructions are automatically sequentially num­bered and stored for later use by a manufacturing techni­cian during production.
  • the visual image of the selected product is also altered to include reference numerals which correspond to each sequentially numbered textual instruction.
  • computer system 10 includes a processor 12 which preferably includes a graphics processor, memory device and a central processor (not shown). Coupled to processor 12 is video display 14 which may be implemented utilizing either a color or monochromatic monitor, in a manner well known in the art. Also coupled to processor 12 is key­board 16. Keyboard 16 preferably comprises a standard computer keyboard which is coupled to processor 12 by means of cable 18.
  • a graphical pointing device such as mouse 20.
  • Mouse 20 is coupled to proces­sor 12, in a manner well known in the art, via cable 22. While the disclosed embodiment of the present invention utilizes a mouse, those skilled in the art will appreciate that any graphical pointing device such as a light pen or touch sensitive screen may be utilized to implement the method of the present invention.
  • computer 10 may be implemented utilizing a so-called personal computer, such as the Model 80 PS/2 computer manufactured by International Business Machines Corpora­tion of Armonk, New York.
  • FIG. 2 there is depicted a pictorial representation of a computer display screen 24 which depicts the operation of the method of the present inven­tion. As may be seen, display screen 24 has been divided into two halves, including an image half 26 and an icon half 28.
  • image 30 Displayed visually within image half 26 of display screen 24 is an image 30 of a product which is to be manufactured by the process to be defined utilizing the method of the present invention.
  • image 30 may be captured form a hard copy utilizing an image scanning technique or may be generated in vector representation utilizing well known CAD/CAM techniques.
  • image half 26 of display screen 24 also preferably discloses the part number and Engineering Change (EC) version of the product for which the manufacturing process is being defined.
  • EC Engineering Change
  • reference numeral 32 has been added to image 30 to indicate the location of a manufacturing process step which has previously been defined by the manufacturing engineer.
  • mouse pointer 34 may be utilized by the manufacturing engineer to select a point within image 30 for application of a subsequent manufacturing process step.
  • mouse pointer 40 a particular icon may be graphically selected by the manufacturing engineer to indicate the process step which has been selected for application at the point of image 30 which has previously been designated by mouse pointer 34.
  • mouse pointer 34 and mouse pointer 40 are in actuality two positions of a single mouse pointer which may be rapidly relocated at any point within display screen 24 by movement of mouse 20 (see Figure 1).
  • a pop-up panel 36 will be displayed within image half 26 of display screen 24.
  • a textual instruction associated with selected icon 38 which has been previously designated for utilization with that icon.
  • the textual instruction includes a fixed textual portion and several blanks which may be filled with values selected by the manufacturing engineer from among acceptable alterna­tives.
  • the textual instruction dis­played within pop-up panel 36 includes a sequential refer­ence numeral 42 which has been automatically associated with the textual instruction by the system.
  • a reference numeral identical to reference numeral 42 will be added to image 30, at the location previously designated by mouse pointer 34.
  • FIG. 3A-3C there is depicted a high level flow chart which illustrates the method of the present invention.
  • the process begins at block 50 and thereafter proceeds to block 52 which illus­trates the importation of a suitable image or graphic representation of at least a portion of the product to be manufactured.
  • block 54 depicts the selection of a point within the product image for application of a manufacturing process step. The coordinates of this point are preferably stored by the system until such time as a reference numeral is to be applied to this point of the image, in accordance with this previously described aspect of the method of the present invention.
  • block 56 illustrates the selection of an icon from the plurality of icons which are depicted within icon half 28 of display screen 24 (see Figure 2).
  • block 58 depicts the displaying of a pop-up panel for the icon selected.
  • the pop-up panel for each icon includes a consistent textual instruc­tion which may or may not include optional areas which may be selected and filled by the manufacturing engineer, in accordance with the particular process selected.
  • Block 60 illustrates the keying in of particular selections by the manufacturing engineer and thereafter, block 60 depicts a determination of whether or not additional pop-up panels exist for the particular icon selected. If so, the pro­cess return to block 58 and displays subsequent pop-up panels so that the manufacturing engineer may continue to modify the textual instructions thus presented, by the optional inclusion of specific data.
  • block 64 illustrates the formatting of the textual in­struction by the system, including any textual inputs inserted by the manufacturing engineer.
  • block 66 indicates the viewing of the formatted text by the manu­facturing engineer. The process then passes via block 68 to block 70 which illustrates a determination of whether or not the manufacturing engineer has accepted the textual instruction thus generated.
  • block 72 illustrates a determination of whether or not the manufac­turing engineer desires to modify the existing text. If not, the process restarts, as depicted in block 74.
  • block 76 illustrates the utilization of a suitable text editor whereby the manufac­turing engineer may modify the textual instruction to vary the preexisting or "boiler plate" portions of the text, or alter the insertions previously submitted.
  • block 80 depicts the automatic sequential numbering of the textual instruction by the system.
  • block 82 illustrates the numbering of the image point which has previously been stored, as illustrated in block 54, with a reference numeral which corresponds to the number of the textual instruction previously generated.
  • block 84 illustrates a determination of whether or not the operation just completed was the last operation desired by the manufacturing engineer and if not, block 86 illustrates the restarting of the program.
  • Block 88 depicts the viewing of the total operation list in the manufacturing process after the last operation has been selected, and block 90 depicts a determination of whether or not the manufacturing engineer desires to add or modify the operations previously created. If not, block 92 depicts the storing of a required equipment list, which may be simply and easily generated from the manufacturing engineer inputs to each textual instruction, and the process list is then stored, as illustrated in block 94. The process then terminates, as depicted in block 96.
  • Block 100 illustrates a deter­mination of whether or not the operator desires to add an additional operation within the defined process. If so, block 102 depicts the utilization of a text editor to add additional text to the process and thereafter the program restarts, as illustrated in block 104.
  • block 106 illustrates a determination of whether or not the manufacturing engineer desires to modify an operation. If not, the process terminates, as illustrated in block 108.
  • block 110 is utilized to illustrate a determination of whether or not the manufacturing engineer desires to modify the image point selected, thus changing the point of application for the manufacturing process step under consideration. If so, the process returns to block 54, via block 112, and the manufacturing engineer is permitted to select a different point within the product image for application of a manufacturing process step.
  • block 114 illustrates a determination of whether or not the engineer desires to modify a process step. If so, the process returns to block 56, via block 116, and the manufacturing engineer is permitted to select a different icon to vary the process step associated with the previously selected point within the product image.
  • block 118 illustrates the calling of a text editor to permit the manufacturing engineer to modify the textual instruction and thereafter the process returns to block 88, via block 120, to permit the manufacturing engineer to once again view the total operation list.
  • a manufacturing process plan may be generated in a manner which highly improves the consisten­cy and efficiency of generating such plans.
  • the manufac­turing engineer will be assisted in providing a process plan which utilizes consistent reading level, terminology, grammar and spelling throughout.
  • the foregoing method permits iterative actions to be saved and repeated throughout the generation of a process plan, thereby greatly enhancing the efficien­cy of creating such plans.

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  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • General Factory Administration (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Control By Computers (AREA)
EP90480125A 1989-10-23 1990-08-29 Méthode et système pour la génération de plans de procédé de fabrication Expired - Lifetime EP0425409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US425786 1989-10-23
US07/425,786 US5134560A (en) 1989-10-23 1989-10-23 Method and system for generation of manufacturing process plans

Publications (3)

Publication Number Publication Date
EP0425409A2 true EP0425409A2 (fr) 1991-05-02
EP0425409A3 EP0425409A3 (en) 1992-09-09
EP0425409B1 EP0425409B1 (fr) 1997-04-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90480125A Expired - Lifetime EP0425409B1 (fr) 1989-10-23 1990-08-29 Méthode et système pour la génération de plans de procédé de fabrication

Country Status (5)

Country Link
US (1) US5134560A (fr)
EP (1) EP0425409B1 (fr)
JP (1) JPH06105455B2 (fr)
CA (1) CA2024635C (fr)
DE (1) DE69030550T2 (fr)

Cited By (1)

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EP0860759A1 (fr) * 1997-02-20 1998-08-26 Volkswagen Aktiengesellschaft Méthode et dispositif de visualisation multimédia de systèmes complexes

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Also Published As

Publication number Publication date
US5134560A (en) 1992-07-28
DE69030550T2 (de) 1997-11-13
EP0425409B1 (fr) 1997-04-23
EP0425409A3 (en) 1992-09-09
DE69030550D1 (de) 1997-05-28
CA2024635C (fr) 1994-02-22
JPH03136750A (ja) 1991-06-11
CA2024635A1 (fr) 1991-04-24
JPH06105455B2 (ja) 1994-12-21

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